[dipl] Perustieteiden korkeakoulu / SCI

Permanent URI for this collectionhttps://aaltodoc.aalto.fi/handle/123456789/21

Browse

Browsing [dipl] Perustieteiden korkeakoulu / SCI by Subject "100% data reliability"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • Distributed Cyber-Physical Systems with Unmanned Aerial Vehicles
    (2017-08-28) Bhatia, Laksh
     Perustieteiden korkeakoulu | Master's thesis
    This thesis discusses the merger between Unmanned Aerial Vehicles (UAVs) and static wireless sensor networks (WSNs). It explores and demonstrates the use of UAVs as mobile sinks to collect data from static sensor networks. A communication protocol is developed to approach a 100% data reliability while trying to maximise the speed of the UAV. An energy model and speed versus reliability models are developed and tested using MATLAB. Mathematical models are developed to calculate the energy needed by nodes in such a system. The energy model developed is used to inform the design of recharging systems with wireless power transfer and consider energy harvesting opportunities. The protocol developed is an asynchronous communication protocol. It is devel- oped in ContikiOS on top of ContikiMAC radio duty cycling protocol using the Rime communication stack. A series of indoor and outdoor tests are conducted using real hardware and the performance of this protocol is compared with CTP. The results show that the protocol developed has 100% data reliability when the speed of the UAV is less than 12m/s. Based on the performance results obtained, subsequent numerical analysis shows that operational lifetime of nodes under these conditions can extend to 1.8 years using a typical 2400 mAH battery. This work is one of the rst practical demonstrations of UAVs with WSN and highlights a number of consequential research questions.